CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 262 · 40 questions

Code tip (Dot for class, hash for id): p matches every <p>; .note matches class="note"; #top matches id="top". A dot means class, a hash means id — mixing them up matches nothing. Many elements can share a class; an id belongs to only one element.

1. 1.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
2. 2.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <h1> (c) <li id="hero"> (d) <p class="big">
3. 3.🎯 Which element does the selector span style? (a) <p> (b) <span class="box"> (c) <h1 class="box"> (d) <h2 id="main">
4. 4.🎯 Which CSS selector matches this element?
   <span class="big" id="main">Hello</span> (a) .big (b) p (c) .red (d) #big
5. 5.True or false: .star is a class selector. (a) False (b) True
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="big" id="hero">Hello</h1> (a) h1 (b) #big (c) .hero (d) #top
7. 7.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
8. 8.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
9. 9.🎯 Which element does the selector p style? (a) <h2 class="note"> (b) <li id="logo"> (c) <p class="note"> (d) <h1>
10. 10.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
11. 11.True or false: h1 is an element selector. (a) False (b) True
12. 12.True or false: li is an id selector. (a) True (b) False
13. 13.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) h1 (b) .big (c) p (d) #intro
14. 14.🎯 Which element does the selector .box style? (a) <h2 class="menu"> (b) <h1 class="star"> (c) <h1 id="box"> (d) <h1 class="box">
15. 15.True or false: .note is an id selector. (a) True (b) False
16. 16.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
17. 17.🎯 Which CSS selector matches this element?
    <span class="star" id="hero">Hello</span> (a) .hero (b) #top (c) #star (d) .star
18. 18.True or false: .star is an element selector. (a) True (b) False
19. 19.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
20. 20.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
21. 21.True or false: #hero is a class selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="logo">Hello</h2> (a) .logo (b) h2 (c) .note (d) #menu
23. 23.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <h1 class="big"> (c) <p> (d) <span class="big">
24. 24.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) #note (b) #hero (c) p (d) h1
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) #intro (b) #box (c) li (d) .box
26. 26.True or false: #main is an id selector. (a) True (b) False
27. 27.True or false: #end is an element selector. (a) False (b) True
28. 28.🎯 Which element does the selector .star style? (a) <p class="star"> (b) <p id="star"> (c) <p class="menu"> (d) <h1 class="note">
29. 29.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
30. 30.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) .star (b) #intro (c) .top (d) #top
31. 31.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) .top (b) .big (c) .note (d) div
32. 32.🎯 Which element does the selector .note style? (a) <span class="red"> (b) <div class="big"> (c) <div id="note"> (d) <div class="note">
33. 33.True or false: #end is a class selector. (a) False (b) True
34. 34.🎯 Which element does the selector .red style? (a) <h1 id="red"> (b) <h2 class="star"> (c) <h1 class="red"> (d) <h1 class="box">
35. 35.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
36. 36.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .note (b) #intro (c) .top (d) #top
37. 37.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
38. 38.True or false: #hero is an id selector. (a) False (b) True
39. 39.True or false: .menu is a class selector. (a) False (b) True
40. 40.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <li class="star"> (c) <h1 class="star"> (d) <h2>

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